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Friday, 22 May 2026
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Physics Past Questions and Answers

Jamb 1999 Physics Questions

Question 46:
The diagram above shows the prism arrangement in a
  • A Binocular
  • B Spectrometer
  • C Periscope
  • D Projector
View Answer & Explanation
Question 47:
The diagram above shows a magnet X with its south pole moved along a soft - iron bar PQ in the direction shown. After some time, the poles at P and Q respectively are
  • A North - North
  • B North - South
  • C South - North
  • D South - South
View Answer & Explanation
Question 48:
In the circuit above, the ammeter reads a current of 5.0 A when R = 8Ω and reads 7.0A when R = 5Ω. The value of the unknown resistance X is
  • A 10.0Ω
  • B 7.5Ω
  • C 5.0Ω
  • D 2.5Ω
View Answer & Explanation
Question 49:
In the circuit above, The potential across each capacitor is 100V. The total energy stored in the two capacitors is
  • A 3.0 x 10<sup style='font-size: smaller;'>4</sup>J
  • B 3.0 x 10<sup style='font-size: smaller;'>2</sup>J
  • C 2.5 x 10<sup style='font-size: smaller;'>-2</sup>J
  • D 6.0 x 10<sup style='font-size: smaller;'>-3</sup>J
View Answer & Explanation
Question 50:
In the diagram above, if the internal resistance of the cell is zero, the ration of the powers P1 and P2 dissipated by R1 and R2
  • A <sup style='font-size: smaller;'>R<sub style='font-size: smaller;'>2</sub></sup>/<sub style='font-size: smaller;'>R1</sub>
  • B <sup style='font-size: smaller;'>R<sub style='font-size: smaller;'>1</sub></sup>/<sub style='font-size: smaller;'>R2</sub>
  • C <sup style='font-size: smaller;'>R<sub style='font-size: smaller;'>1</sub>+R<sub style='font-size: smaller;'>2</sub></sup>/<sub style='font-size: smaller;'>R1</sub>
  • D <sup style='font-size: smaller;'>R<sub style='font-size: smaller;'>1</sub>+R<sub style='font-size: smaller;'>2</sub></sup>/<sub style='font-size: smaller;'>R2</sub>
View Answer & Explanation